AsLive<T>(INotifyCollectionChanged,ViewOrder) Method

Creates a view based on the specified System.Collections.Specialized.INotifyCollectionChanged data source.

Syntax

Visual Basic
C#

'Declaration
 
Public Overloads Shared Function AsLive(Of T)( _
   ByVal source As System.Collections.Specialized.INotifyCollectionChanged, _
   ByVal order As ViewOrder _
) As View(Of T)

public static View<T> AsLive<T>( 
   System.Collections.Specialized.INotifyCollectionChanged source,
   ViewOrder order
)

Parameters

source: The System.Collections.Specialized.INotifyCollectionChanged data source to expose as a view.
order: Specifies whether to preserve source item order.

Type Parameters

T: The type of the elements in the view.

Return Value

A view that contains the same elements as the System.Collections.Specialized.INotifyCollectionChanged data source.

Remarks

Use this method to build views from existing data sources implementing System.Collections.Specialized.INotifyCollectionChanged. The element type of this data source must implement System.ComponentModel.INotifyPropertyChanged, see Using the built-in collection class IndexedCollection(T) (LiveLinq to Objects)|tag=Using_the_built_in_collection_class_IndexedCollectionT_LiveLinq_to_Objects.

If the order parameter specifies preserving item order, the order of items in the source is preserved, at a certain performance cost, in the resulting view and in views based on it (for example, if you filter it with Where).

Note that Join does not preserve source order. If you need to order a join result, use OrderBy after Join.

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

WpfExtensions Class
WpfExtensions Members
Overload List